In a tweet, President Trump thanked Tillerson for his service to the country.
Following the oft-criticized speech Trump gave to the Boy Scouts in 2017, Tillerson reportedly threatened to resign from the State Department.
Tillerson’s ties to Russia have also been scrutinized – a criticism that has plagued many Trump administration officials as investigators continue to look into Russian meddling in the 2016 election.
In those roles, Tillerson was tasked with overseeing Exxon’s holdings in Russia and the Caspian Sea, his Exxon biography stated.
He met with Russian President Vladimir Putin multiple times before becoming secretary of state.
Mike Pompeo, Director of the CIA, will become our new Secretary of State. He will do a fantastic job! Thank you to Rex Tillerson for his service! Gina Haspel will become the new Director of the CIA, and the first woman so chosen. Congratulations to all!— Donald J. Trump (@realDonaldTrump) March 13, 2018